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UNITED `STATES PATENT OFFICE.

PETER E. VVISTRAND, OF KEVANEE, ILLlNOIS, ASSIGNOR TO VILLAM H. TAYLOR, .OF SAME PLACE.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 440,084, dated November 4, 1890.

l Application filed January Y'7, 1890. Serial No. 336,150. (No model.)

.To all whom it may concern,.-

Be it known that I, PETER E. WISTRAND, a citizen of the United States, residing at Kewa nee, in the county of Henry and State of Illinois, have invented a newv and useful Windmill, of which the following is a specification.

The invention relates to improvements in windmills.

The object of the present invention is to simplify, improve, and cheapen the construction of windmills and enable the parts to be readily connected together and a windmill to be quickly erected.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, andpointed out in the claims.

In the drawings, Figure 1 is a perspective view of the upper portion of a windmill constructed in accordance with thev invention. Fig. 2 is a front elevation, the tower-casting being in section. Fig. 3 is acentral vertical sectional view. Fig. 4 is a detail view illustratin g the manner of attaching the cushioned end of the stay-chain. Fig. 5 is a detail View of the main casting. Fig. 6 is a detail view of the top casting. Fig. 7 is a detail view of the pulley-boX-supportin g arm. Fig. 8 is a detail perspective view illustrating the lower end of the pitman and the collar.

Referring to the accompanying drawings, 1 designates the tower-casting, which is designed to be mounted upon a suitable tower, and is provided with a tapering socket 2, which receives a turn-table 3, that is formed integral with the main casting 4. The turn-table is tapering or slightly conical, and is provided near its lower end with an annular flange 5, that bears upon the bottom of the socket 2 of the power-casting, the end of the turn-table resting in the extreme lower portion of the socket, which is open to receive a pump-rod 6. The turn-table is retained in the socket of thetower-casting 1 by a set-screw, which extends through the casting 1 and engages the annular ange 5 at the lower end of the turn-table. The turn-table is hollow, and has arranged within it the pump-rod 6 and a pitman 7, that is provided at its upper end with a bearing 8, in which is j ournaled a crank-arm 9,havinga shaft 10,upon which the wind-wheel is mounted. The upper portion 11 of the main casting 4 is approximately rectangular,

and is provided with a central oblong opening 12, in which is arranged the crank-arm 9 of the shaft and the upper end of the pit-man. The upper portion 11 of the main casting is provided upon one sidewithalaterally-extending arm 13, which is hollow and has mounted 'within it the shaft 10, and is provided at its 'outer end with a bearing 14, and the opposite side of the upper portion of the main casting is provided at its top and bottom with lugs 15, which are perforated and have journaled in the perforation a pintle-rod 16, by which a vane-casting 18 is hinged to the main casting. The vane-casting has bolted to it a vane 17, which is retained in a line with the shaft 10, upon which the wind-wheel is mounted by a chain 19, which has one end secured to the vane 17 and its other end secured. to a bolt 20, that is arranged in a perforation of an arm 21, that is secured to the side ofthe main casting and extends outward at right angles to the shaft 10 and the vane 17 when the latter is in operative position and in a line with said shaft. The bolt 2O is provided with a nut 22, and has interposed between the nut and the arm 21 a spiral spring 23, which is coiled around the bolt and acts as a cushion and prevents the parts being jarred wh en the vane swings into the wind. The arm 21 is supported by braces 24 and 25, the former of which is secured to the bearing-arm 13, and the latter is attached to the upper end of a top casting 26, that is secured to the upper portion of the main casting and provided with legs 27, that are bolted to the main casting. The top casting 26 is provided with anelongated opening 2S, in the upper end of which is journaled a pulley 29, over which passes a chain 30, which passes around a pulley 31, that is mounted in the end of the arm 21, and the said chain is secured to the vane and is adapted to draw the latter out of the wind and cause the wind-wheel to be also turned away from the wind and thereby regulate the windmill. The chain 30 is connected to the upper end of the vertical rod that is provided with a suitable regulating device to control the windmill. The vertical rod 32 passes ICO through an opening 33 in` the upper crosspiece of the main casting and extends down through the hollow turn-table and is arranged within the pump-rod, which is preferablyconstructed of tubular metal and is swiveled to the lower end of the pitman by a collar 34, which is constructed of two separate sections, and during the operation of the mill the collar is within the conical portion of the turntable, and is thereby prevented separating and the parts held together, and to separate the parts the collar must be lifted from the turn-table. The pulley 31, which changes the direction of the chain 30 and enables the same to draw the vane toward the arm 21, is mounted in a box 35, that is formed integral with the arm 21 at the end thereof, and consistsof the triangular plates 36 and 37 and the post 38, connecting the two plates. A hub 39vis secured to the outer end of the shaft 10, and is designed to receive the blades of the Wind-wheel.

From the foregoing it will readily be seen that the windmill-frame is simple and inexpensive in construction, adapted to be readily mounted upon a tower, and is composed of but a few parts that are easily connected together.

Having thus described my invention, I claim- 1. In a wind mill, the combination of the tower-casting provided with a socket, the main casting having the integral turn-table mounted in the socket, the vane-casting hinged to the main casting, the top casting vmounted upon the upper portion of the main casting, and the arm 21, secured to the side of the .main casting, having the pulley 31, mounted in a suitable casing, the chain 19 extending from the vane to the arm, and the chain 30, passing over said pulleys and connected to the Vane, substantially as and for the purpose described.

2. In a windmill, the combination of the main casting, the vane-casting hinged to the main casting, the arm 21, extending outward from the main casting and having the pulley 31 mounted in a suitable casing, the chain 19, having one end secured to the vane-casting and its other end attached to a nut and bolt mounted in the outer end of the arm 21, a spring interposed between the nut and the arm and adapted to act as a cushion and prevent the parts being racked when the vane swings into the wind, the top casting provided with a pulley 29 in its upper end, and the chain 30, extending to the bottom of the lower end and passing over the pulleys 29 and 31, and having one end connected to the vane, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two Witnesses.

PETER E. VISTRAND. 

